Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Dulles → San Diego via Houston: arrives on time 73%
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08:40 IAD → 10:59 IAHUA 1524 · United · 3h 19m · 89% on time, 0.6% cancelled
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1h 01m layover in Houston (IAH) · 45 min minimum on one ticket
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12:00 IAH → 13:21 SANUA 2399 · United · 3h 21m · 83% on time, 0.0% cancelled
Total trip 7h 41m, scheduled departure to arrival (San Diego is 3 h behind Dulles). Times are local. Both flew on 56 of the last 56 days.
Makes the connection89%The first flight arrived more than 16 minutes late on 11% of the days it flew: too late for the 45-minute minimum connection on a 1h 01m layover.
Arrives on time73%First flight not cancelled (0.6% are) × connection made (89%) × second flight not cancelled (0.0% are) and within 15 minutes (83%).
Total trip7h 41mIAD 08:40 to SAN 13:21, layover included
Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.